EK430
Collapse mechanism is a term applying to the state of the structure approaching total collapse. The mechanism condition is reached when a sufficient number of plastic hinges have developed and, […]
Collapse mechanism is a term applying to the state of the structure approaching total collapse. The mechanism condition is reached when a sufficient number of plastic hinges have developed and, […]
The plastic design method is based on the following assumptions: The material has the capacity to undergo considerable plastic deformation without danger of fracture. Ductility of steel (that is, a […]
Relative deformation capacities of the elements in the load path: Plates in bending. Relatively large elastic deformation. Large deformation capacity when plastic hinges form. Plates in tension and plates in […]
The behaviour of a girder under an increasing shear load may be divided into the three phases: Unbuckled. The situation prior to buckling when equal tensile and compressive principal stresses […]
For limit design to be valid, four conditions must be satisfied: Mechanism condition: Sufficient plastic hinges must be formed to transform the whole or part of the structure into a […]
In general, the contribution of shear reinforcement to the shear strength of a reinforced concrete beam can be described as follows: It resists part of the shear. It increases the […]
Plastic hinges form in a member at the maximum bending moment. However at the intersection of two members, where the bending moment is the same, the plastic hinges forms in […]
It is tacitly assumed that collapse in plastic methods is due to the formation of plastic hinges at certain locations and that other possible causes of failure, for example, local […]
The possible locations for plastic hinges to develop are at the points of concentrated loads, at the intersections of members involving a change in geometry and at the point of […]
Two failure modes can be identified for hanger-type connections: formation of plastic hinges in the tee flange or angle leg at cross-sections 1 and 2, and tensile failure of the […]